My HELIX 10 screen turns PINK after being turned on for about 30 minutes and then goes normal for a while and back to Pink. eventually it stays Pink. It will not do it when the unit is out of the boat in simulator mode. The ducer for the 10 is on the transom and I have a HELIX 9 at the bow with no issues connected to the ducer on an ulterra TM. Any ideas why my 10 turns pink?